History .

★ First Earthquake: Avani (People name Earth-quakes) It was 200 Years ago, a rather small amount of poison was spilled into the water of the biggest lake near the town. Not many people died because of the earthquake itself, but over half of the towns population passed away due to the poison in the water.

★ The second significant earthquake, Daichi, wasn’t as strong as the last one, but spilled a lot more poison into the lake. There are a very few other, small lakes not that far away, but it’s not granted that they aren’t poisoned. They (one or more npc's) are about to invent a filter which could nullify the poison.